Hoist



. NELLER.

HOIST INVENTOR #MHA/M.

ATTORNEY MM H www WW A. H. NELLER.

HOIST.

APPLICATION FILED IIIIAY 31 4Patented Oct. 117, 1922. 4 SHEETS-SHEET 2.

v ATTORNEY A. H. NELLER.

l 4 HOIST.

APPLICATION FILED lvl/w31, 1921.

l-ALSQQM Rateuted Oct. 317, 1922.

4 SHEETS-SHEET 3.

INVENTOR ATTORNEY A.` H. NELLER.

Hols. APPLICATION FILED MAYI Patented Oct. 17, i922.

4 SHEETS-SHEET 4- INVENTOR BY y ATTORNEY Patented @et l?, i922.

UMTFD stains inane FWF FFME.,

yALBERT H. NELLER, OF FAIRFIELD, OWA, ASSIGNOR T THE LOUDEN MACEINERYCOMPANY, OF'FAIRFIELIDyIOWA, A CORPORATION 0F IOWA.

HOIST.

` Application `filed May S1,

T 0 all 107mm may concern.'

Be it known that l, ALBERT' H. NELLER, a citizen of the United States,residing at Fairfield, in the county of Jeffersomf State of iowa, haveinvented a new and useful Improvement in Hoists, of which thefollowin isa specification. n

l y invention' relates to` hoists having gearing to increase the liftingpower oimthe hoist, and it consists oi' an arrangement oit the partswhereby a hoistingwheel is mount- 'l ed at one end of the gearing and aneXtension or extensions are secured to the opposite end of the gearingvwhereby an additional wheel or wheels may be mounted on said extensionor extensions at some distanceirom the gearing and said. hoisting wheelor wheels will operate in unison with the first mentionedhoisting'wheel. Also, it consists otbraces secured to a casing whichusually encloses the gearing to support the extension or extensions, andoit other improved features set forth. in the speciiicationuand de-Iined in the claims. p I

In the accompanying drawings which form a part of this specification,Fig. l is a side perspective rci a hoist mounted on an overheadtrack-way and embodying my invention. Fig. 2 is an enlarged perspectiveci the part or" the hoist containing the gearingand the first hoistingwheel mounted therein. Fig. 3 is a similar view of the part containingthe second hoisting wheel which is mounted on the extension. Fig. 4 isIan enlarged 'perspective of `the part containing theA gearing with the.casing removed and certain' portions` partlybroken away to obtain abetter view of somle oi' the interior mechanism. Fig. 5 is a verticallydisposed longitudinal section on line 5-5 of Fig. fl.

Gis a vertical transverse section on line 8-'6 or" Fig. 4f., looking inthe direction oi the arrow. Figs. 7 andS are detail views which will belater explained. Fig. 9 is a transverse section on line 9"-9 of 8. s. i0and ll are additional detail views.

Fig. l2 is a slightly enlarged transverse section on line 'l2-l2 oi Fig.5, the cut away portion of Fig. 5 being replaced to make the structurecomplete.

.Referring to the drawings, A represents 1921. Serial No. 473,697.

an elevated traclnway on which trolleys B are mounted. The trolleys arepreferably arranged in pairs joined together by connectingdevices C. Drepresents the main frame containing the gearing and D a supplementalframe between which and the main frame a hoisting wheel E is mounted andshown vin Fig. 5. The wheel is preferably provided with sprockets e,(see Figs. 5 and 6) to engage the links of `the hoisting chain F.

G represents an extension frame in which the second hoisting wheel ismounted. The mlain frame D and the extension frame G are attached to theconnecting devices Cof the adjacent trolleys by means of a swivelcontaining a transverse pivot I, the object of which pivot is to reventthe bending or breaking of the swive head should'either of thetrolleysrun off the track-way, orbecome so disconnected from the end ofthe hoist to which they are attached thatsaid end would'drop down to an.approximately vertical position.

In Figs. 1 and 2, the'rm'ain lframe D is shown provided. with a casing Jwhich removed in Figs. 4 and 5 to give a view of the interior mechanism.K represents la chain wheelupon which afhand chain L is mounted and bymeans of which the gearing ofthe` hoist is operated. The wheel Kismounted on a shaft M which has a small gear Non its inner end',v (seeFigs. 4 and 5.). A revolving trame kO carrying two dual or diiierentialgears and P', the larger oi which gearsare in miesh with the small gearN, is mounted in themain frame. On the circumference of -the main frameis an internal gear ,Q which. is iny mesh with the smaller of the`dualor differential gears F.

The hoisting wheel E is provided with an extension R (see Fig. 5) whichis rigidly fastened by a key K,.as shown in Fig. l2, or otherwiserigidly secured in the revolving trame O, whereby they will turn inunison. Theshait' M to which the hand wheel K is affixed, is journaledin the wheel E and its extension fR, and will .turn freely therein. f

handr chain L will operate the entire'4 2 fr i/ise with tlie stationaryinternal gear Q, and

` being also rotated, will cause the revolving ling chain VF accordingtothe direction of the rotation. Consequently a pull on the mechanismand the leverage onthelioisting chain F will be largely increasediby thegearing. To provide for the operation of the second hoisting chain lfl,lfuse a shaitfi, preterablv ot tubular material., l ati/ii; to therevolving Jframe (l, shown. Ainy Figs'.j l ando, ac'oiipling member Thas portion T adapted-toldo inserted in the adjoining end of'the;tubularshaft S, and tobe prete erably secured thereto by vbolts The cou--plin'g member T is preferably? connectedl to the revolving traineby,passing'.the enf tended ends ot the axles t, on which the gears PandyP are mounted, th-rough holes in the extended ends' 'ottliecoupliiig mei-liber and securing' them in this position by' cot'-Aters, as 'sliown' in Figs. stand v Thebther end of the shaft Sl is'ypassed Y througliopeningsi'n the extension Jiraine G with the chain F.

where it maybe lfreely rotated by itscon= nection with tlieievolvableVtroine i). nthis end oit the shaft and' within the ,traine aiixed ahoisting wheel to' receive the hoisting chain H. riilhis hoisting wheel(not v shown in detail in the drawings) isoi' the saine diameter as theywheel and is preferably:`p'rovided with similar sprockets vto engageandoperatevv the chainipH` in' unison Tojhold the extension frame Gf'fixed 'ielation'with the main traine D, l 'use braces U, preferably oftubular materiakan'd three in number.'l Tubular shaped sockets V areformedy on ythe face of the casing'J and'` also on 'the adjacenty faceyof the frame G, vand after passing over ythe hoisting wheels, are

the ends of thebraces U areL inserted in said socketsfand arelseciiredthereiiipref;

erably by lbolts b'. liiuse the ycasing .l is securely lheld in; placeon the frame Df by means 'of bolts d, (shown in Fig. 4)" and thereforetheiranies D` and G 'will be securely held in iixed'relationj by thebraces U.

The upperl slack ends of ,the hoisting chains F and ll,kdesignated by Fand H',

'preferably connected to' adjacent 'ends of the extension shait S, andare arranged to wind and unwind thereonas the lower ends of the chainswhich carry the loads are raised and lowered. To assist in, winding andunwinding the chains, I usev guides W yto slide 'on the shat'tSv 'andalso on lone ot the braces U. To prevent the sticking of these guides insliding onthe shaft Sand brace U, (preferably the lower brace) I useroll- 'i-ers X, as most plainly'shownin Fig. 10.

The rollers ars locatedon the guidesso as to run on opposite sides ofthe brace U and will thereby prevent it from catching or stickingthereon, as itV would be liable to do'wit'hout the rollers. v f

In using the hoist, thefloads `which are attached to the lower ends otthe hoisting .chains F and lH, (loads not shown), vwill sometimes swingaround and twist the chains so they will not run straight to thevhoisting wheels but will climb on one side `ifis'showfnby F l8,9 andil, the hollow V portions oi these guides, through 'which the `chainspass, 'are made to Vloosely tit the general contour ot the links of the'chains, and thechains willbe straighteiiedv in passing through them, bythe angular' cornei'sg coining iii Contact lwith the sides ot the links9 sliouldthe chains become twisted.I By this means the' chainsl will Vbestraightened and f will be prevented Atrom climbing upon thek edges ofthe hoisting wheels. The guidewY v is' pivoted at its upper endbetiveen` lthe trames D andD on one side of th'e'wh'e'el E at Z, andtheguide 'Y `is pivoted near its lower end between the frames on the otherVside of the wheel E at Z', as shown in Fig. 6.

lt isA necessary sometimes that the lower end of the guide Y'sho'uld befree toswing side-wise toa* certain extent to accommodate the line Aotdraft of the chain. Therefore it 'is pivoted at its iippere'nd This isnot necessa'ry in the descending or' slackends F and H of the chains,and tor this vreason the yguide Y' is pivoted'near its'low'er end.y Theguide Y" Ais provided with an upstanding prong 7i `which is adaptedtoproject'into the recess vin the center of the lhoisting jwheel betweenthe sides e, topreven't the slack chain from followingA around thelwheel on its underl side. Also, with upstanding prongs c' to furtherassist in separating the sla'ckchain from the wheels to form the loopF", and alsothe loopI-l.

Itl is obvious that additional y.extensions may be made byplacing'additionaltrolleys on the ltrack-way and connecting tosaidtrolleys additional extension iraines G, similary to that shown inFigs. l and 3. Sockets V will;

have to be placed on the outertace of the frame@ and ythe additionaltrame or liframes it used, except the last one similar to those on theinner face of the lrainey G, or other iso 1 ,asefioe means will have tobe provided for the attachment thereto of additional extension braces,similar to the braces U. .An additional extension shaft or shafts willyalso have to be provided and coupling means will have to be used toconnect said shaft or shafts to the preceding extension shaft.

As shown in the drawings, the hoist is adapted to lift twol separateloads in unison at one operation, the loads being attached to the chainsF and H, but by using `additional extension frames and extension shaftswith wheels thereon carrying hoisting chains, as explained, it will beadapted to lift additional loads. 0n the other hand, if only one load isto be lifted, the extension shaft S and braces U may be disconnectedfrom the gearing and from the casing J, in which case it-.may be used asan ordinary single hoist, thus making it adaptable to a variety of useseither single or plural as may be required. Also, the loads, whethersingle or plural, after being lifted maybe readily carried along theelevated track-way. It will be observed, as most plainly shown by Figs.l, 3, 5 and 6, that in addition to the transverse pivot l, there is alsoa longitudinal pivot fm in the swivel connecting together the trolleysand the frameseD, Dv and G. This longitudinal pivot will permit thetilting of the hoist side-wise to a considerable extent, should this berequired, without straining the swivel connection or disarranging thetrolleys on the track-way. A guard for the chain wheel K is representedby a and r is a pivoted cover for an opening in the casing J, saidopening being convenient for the oiling of the gearing within thecasing. In Fig. 5 a common arrangement is shown at X and adjacentthereto, whereby the chain wheel K will be automatically thrown intorigid connection with the shaft M or be released therefrom, whicharrangement being common in the prior art need not be explained.

lThe hoist is complete in its construction,

being designed to meet all requirements under all conditions.

I do not however, limit myself to the exact construction show-n in thedrawings. lWhat l claim as my in- ,vention is:

l. In a hoist having trolleys toA run upon and be supported by an4overhead trackway, the combination of a main frame containing gearingto increase the lifting capacity of the hoist; a hoisting wheel connected to the gearing at one end of said main frame; an extension shaftat the other end of the frame; coupling means to connect the adjacentend of the extension shaft to the gearing; an extension frame havingtrolleys to run upon and be supported by the overhead track-way, theouter end of the .shaft being journaled in .said extension pledto theother end of the revolving frame, an extension framehaving trolleys torun upon and be supported by the overhead track-way, the outer end ofthe extension shaft being journaled in said extension frame, and ahoisting wheel on theouter end of the extension shaft adapted to berotated in unison with the wheel on the other end of the revolvingframe.

ln a hoist having trolleys to run upon and be supported by an overheadtraclo way, the combination of a main frame containing gearing toincrease the lifting capacity of the hoist; a revolving frame in themain frame connected to said gearing; a hoisting wheel affixed 'to oneend of the revolving frame; an extension shaft of tubular material; acoupling casting con nected to the other end of the revolving frame andhaving an extension inserted in the adjacent end of the tubular shaftand fastened therein; an extension frame having trolleys to run upon andbe supported by the overhead track-way, the outer end of the extensionshaft being journaled in said extension frame, and a hoisting wheel onthe outer end of the extension shaft adapted to be rotated in unisonwith the hoisting wheel on the other end of the revolving frame.

di. in a hoist having trolleys to run upon and be supported by anoverhead trackway, the combination of a main frame containing gearing toincrease the lifting capacity of the hoist; a revolving frame in themain frame connected to sait gearing; a hoisting wheel aiiixed to oneend of the revolving frame; an extension shaft of tubular material; aT-shaped coupling casting having its outstanding portions connectedtothe other end of the revolving frame and the stem of the Mi" inserted inthe'adjacent end of the tubular shaft and fastened therein; an extensionframe having ,trolleys to run upon and be supported by the overheadtrack-way, the outer end of the extension shaft being journaled in saidextension frame, and a hoisting wheel on the outer end of the extensionshaft adapted to be rotated in unison with the wheel on the other end ofthe revolving frame.

5. in a hoist having trolleys to run upon and be supported by anoverhead trackway, the combination of a main 'frame containing gearingto increase the lifting capacity oil the hoist; a hoisting wheelconnected to the gearing at one end of said main frame; an extensionshalft at the other end ol? the frame; coupling means to conneet theadjacent end o'l the extension shaft to the gearing; an extension framehaving trolleys to run upon and vbe supported by the overhead trackway,the outer end of the shaft being journaled in said extension trame; ahoisting wheel on the outer end olfthe extension shaft adapted to berotated in unison with the wheel at the other end of the inaiii traine,and hoisting chains mounted upon said hoisting wheels.l

6. ln a hoist having trolleys to run upon land be supported by anoverhead track-way, the combination of a main iframe containing gearingto increase the lifting capacity oi" the hoist; a hoisting wheelconnected to the gearing at one end of said main frame; an.

extension shalft at the other end of the frame; coupling means toconnect the adjacent end of the extension shaft to the gearing; anextension frame havingl trolleys to run upon and be supported by theoverhead trackway, the outer end of the shaft being `iournaled in saidextension frame; a hoisting wheel on the outer end of the extensionshat't adapted to be rotated in unison with the wheel at the other endoi" the main trame; and means to operate the hoisting gearing,

7. In a hoist having trolleys to run upon and be supported by anoverhead track-way, the combination ci a main frame containing gearingto increase the lifting capacity of the hoist; a casing attached to saidiframe to enclose the gearing; a hoisting wheel connected to the gearingat one end of the trame; an extension shaft at the other end oi' thetrame; coupling means to connect the extension shait to the gearing; anextension trame having trolleys to run upon and be supported by theoverhead track-way, the outer end of the shaft being joui'naled in saidframe; a hoisting wheel on the outei' end of the extension shailitadapted to be rotated in unison with the hoisting wheel at the other endoit the main traine, and a series of braces surrounding the extensionyshaft and aillixed to theadjacent faces of the casing and the extensionframe, whereby the extension traine and the casing, and the main frameattached thereto, will be securely held in lined relation. i

8.@ln a hoist having trolleys to run upon and be supported by anoverhead track-way, the combination of a main frame containing gearingto increase the lilfting capacity of the hoist; a casing attached tosaid frame to en` close the gearing; a hoisting` wheel connected to thegearing at one end ot the frame; an extension shaft at the other end ofthe frame; coupling means to connect the extension shaft to the gearing;an extension frame having trolleys to run upon and be supported by theoverhead track-way, the outer end of the shaft being journaled in saidframe; a hoisting wheel on the outer end of the eX- tension shaftadapted to be rotated in unison with the hoisting wheel at the other endof the main frame; a series of sockets on the adjacent faces of thecasing and the eXtensioii frame surrounding the extension shaft, and aseries of braces having their ends affixed in said sockets whereby theextension traine and the casing with the main frame attached will besecurely held in fixed relation.

9. In a device of the character described, a plurality of trolleysadapted to run on an overhead trackway ya distance apart, a separatehoisting frame connected to each Separate trolley, extended meansconnecting the hoisting frames together and adapted'to operate theirmechanism in unison, and a'transverse pivot in each connection betweeneach hoisting frame and the trolley to which-it is connected, wherebyshould either trolley be dropped to a position below another thetransverse pivot in the connection between it and the hoisting framewillbe free to ac'- commodate the mechanism to the accidental positionand guard against breakage or disarrangeinent. 4 1 y l0. ln a deviceoit' the character described, a pluralityoi' trolleys adapted to run onan yoverhead trackway a distance apart, a-separate hoisting frameconnected to each separate trolley, a swivel in each connection, eX-

tended means connecting the hoisting frames together and adapted tooperate their mechanism in unison, and a transverse pivot in each swivelconnection, whereby i should either trolley be dropped to apositionbelow another the transverse pivot inthelconnec tion between itand the hoisting frame will be free to accommodate the mechanism to theaccidental position and swing Aaround to guard against breakage ordisarrangement.

ll. In a device of theV character described, a plurality of trolleysadapted to run on an overhead trackway a .distance apart, a separatehoisting frame connected to each separate trolley, a swivel in eachconnection, extended means connecting the hoisting frames together andadapted to operate their mechanism in unison, and a double pivot, onetransverse and the other longitudinal in each connection, whereby shouldeither. trolley be dropped to a position below another the pivots in theconnection between it and the hoisting frame will be lree to accommodatethe mechanism to the accidental position and swing around to guardagainst breakage or disarrangement.

l2. ln a hoistingdevice having a hoisting wheel; a horizontally disposedshaft connected to said wheel and adapted to be ro-y tated in unisontherewith; a hoisting chain passed over the hoisting Wheel and its slackend arranged to Wind and unwind on said .horizontal shaft; asupplemental member extending below and parallel with the shaft; a guidemounted on said shaft and supplemental Inember through which the chainis passed to assist it in Winding and unwinding on the shaft, androllers journaled in said guide on each side of the supplemental meinber, whereby the guide will be prevented from sticking` on the member.

Fairfield, owa7 May 24, 1921.

ALBERT H. NELLER.

